Cyclopentanone CAS 120-92-3 C5H8O

Cyclopentanone, also known as Adipic Ketono, is a colorless, transparent, oily liquid. It has a characteristic ether-like odor, slightly resembling mint. Its relative molecular mass is 84.12, relative density is 0.9487, melting point is -51.3℃, boiling point is 130.6℃ (23-24℃, 1.333 × 10³ Pa), refractive index is 1.4366, and flash point is 30℃. It is insoluble in water but soluble in ethanol, ether, and acetone. At high concentrations, it has anesthetic properties. It can be prepared by the oxidation of cyclopentanol or by heating adipic acid in the presence of barium hydroxide. Cyclopentanone readily polymerizes, especially in the presence of acid.

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Description

Cyclopentanone Basic information
Product Name:	Cyclopentanone
CAS:	120-92-3
MF:	C5H8O
MW:	84.12
EINECS:	204-435-9
Mol File:	120-92-3.mol
Cyclopentanone Chemical Properties
Melting point	-51 °C (lit.)
Boiling point	130-131 °C (lit.)
density	0.951 g/mL at 25 °C (lit.)
vapor density	2.97 (vs air)
vapor pressure	11.5 hPa (20 °C)
FEMA	3910 \| CYCLOPENTANONE
refractive index	n20/D 1.437(lit.)
Fp	87 °F
storage temp.	Store below +30°C.
solubility	9.18g/l slightly soluble
form	Liquid
color	Clear colorless to slightly yellow
Odor	Pleasant
Odor Type	minty
biological source	synthetic
explosive limit	1.6-10.8%(V)
Water Solubility	PRACTICALLY INSOLUBLE
Merck	142,743
JECFA Number	1101
BRN	605573
Henry’s Law Constant	1.2×100 mol/(m3Pa) at 25℃, Brockbank (2013)
Dielectric constant	16.0（-49℃）
Stability:	Stable. Incompatible with strong reducing agents, strong oxidizing agents, strong bases.
Major Application	flavors and fragrances
Cosmetics Ingredients Functions	PERFUMING
InChI	1S/C5H8O/c6-5-3-1-2-4-5/h1-4H2
InChIKey	BGTOWKSIORTVQH-UHFFFAOYSA-N
SMILES	O=C1CCCC1
LogP	0.7 at 25℃
Surface tension	33.78mN/m at 298.15K
CAS DataBase Reference	120-92-3(CAS DataBase Reference)
NIST Chemistry Reference	Cyclopentanone(120-92-3)
EPA Substance Registry System	Cyclopentanone (120-92-3)

Application:

Food flavor

Safety profile:

This product is a non-toxic and safe ingredient that is good for the skin when used in small quantities. It is also non-sensitizing but can be mildly irritating for sensitive skin. A patch test is, therefore, recommended. This product is also safe for the environment and may or may not be considered vegan – depending upon its source.

Storage requirements:

keep the product dry

relative humidity < 50%

protect product against influences of weather and contamination

Transport & Packaging:

This product for technical applications is solely supplied in packaging of different sizes . It can be packaged in various items: 25 L drums, 1000 L IBC drums.